Sr. Staff - Python Automation + Networking

Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 200+ public data centers globally and thousands of private sites at the edge, the SASE-based Zero Trust Exchange is the world’s largest in-line cloud security platform. We believe the future of work is Human + AI and are building an AI-native enterprise where human potential is amplified by machine intelligence to solve the world’s hardest security challenges. Driven by deep customer obsession, we are committed to the mission, outcome, and to each other. We bring these commitments to life through three core behaviors: ownership and collaboration, trust through outcomes and impact, and a challenge culture with ongoing feedback. Ready to make an impact at the company pioneering security transformation in the AI era? Join us at Zscaler. Role We are looking for a Sr. Staff Engineer to join our team. This is a Hybrid role in Bangalore or Mohali, reporting to the Director, Software Development Engineering in the Engineering department. This unique and challenging position bridges software design engineering and test engineering to design, develop, and deploy wide-reaching tools and frameworks that automatically verify product quality at scale. What you’ll do (Role Expectations) • Own end-to-end System Integration Testing (SIT) and quality outcomes for key platform areas including UI, APIs, services, and data workflows • Design and deliver effective, automatable test plans with strong coverage for functional, regression, and system integration scenarios • Build and maintain UI and API automation using modern frameworks to ensure stability, maintainability, and fast feedback • Validate large-scale systems including REST APIs, backend services, distributed workflows, and microservices Who You Are (Success Profile) • You thrive in ambiguity. You're comfortable building the path as you walk it. You thrive in a dynamic environment, seeing ambiguity not as a hindrance, but as the raw material to build something meaningful. • You act like an owner. Your passion for the mission fuels your bias for action. You operate with integrity because you genuinely care about the outcome. True ownership involves leveraging dynamic range: the ability to navigate seamlessly between high-level strategy and hands-on execution. • You are a problem-solver. You love running towards the challenges because you are laser-focused on finding the solution, knowing that solving the hard problems delivers the biggest impact. • You are a high-trust collaborator. You are ambitious for the team, not just yourself. You embrace our challenge culture by giving and receiving ongoing feedback—knowing that candor delivered with clarity and respect is the truest form of teamwork and the fastest way to earn trust. • You are a learner. You have a true growth mindset and are obsessed with your own development, actively seeking feedback to become a better partner and a stronger teammate. You love what you do and you do it with purpose. What We’re Looking for (Minimum Qualifications) • Foundational understanding of AI/ML technologies and experience leveraging, securing, or positioning AI-driven solutions to optimize outcomes within your functional domain • Advanced proficiency in automation testing using Python (pytest/unittest), JavaScript, or TypeScript • Hands-on experience with UI automation tools such as Selenium, Cypress, or Playwright for end-to-end validation • Deep experience testing distributed systems, microservices, and scalable cloud-native multi-tenant architectures in AWS, GCP, or Azure environments • Solid understanding of CI/CD integration, Linux troubleshooting, and containerized environments including Docker and Kubernetes • Technical knowledge of L2/L3 networking concepts, including routing protocols, VPN, IPSec, and WAN architecture What Will Make You Stand Out (Preferred Qualifications) • Proven experience designing scalable test frameworks covering architecture, patterns, reporting, stability, and parallelization Proficiency with Git, test management tools like TestRail, and issue tracking systems such as Jira • Hands-on experience with AI agent prompting and usage for productivity, test design, and automation support #LI-Hybrid #LI-GL2 At Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure. Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including: • Various health plans • Time off plans for vacation and sick time • Parental leave options • Retirement options • Education reimbursement • In-office perks, and more! Learn more about Zscaler's hybrid working model and benefits here. By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteris